Table 2.

BMD (by dual-energy x-ray absorptiometry) at baseline in the four groups

Group	n	Spine	Femur	Total body
Knockout
PTH	11	0.0561 ± 0.0038	0.0702 ± 0.0062	0.0484 ± 0.0027
Vehicle	8	0.0609 ± 0.0035	0.0699 ± 0.0063	0.0486 ± 0.0021
Wild type
PTH	10	0.0581 ± 0.0043	0.0740 ± 0.0083	0.0497 ± 0.0024
Vehicle	8	0.0572 ± 0.0039	0.0694 ± 0.0044	0.0485 ± 0.0022